This project explores whether nails, toothpicks, straws, or pen nibs are best for applying ink to paper.

There are many benefits to bugs and insects. This science project shows how cockroaches, termites, and other critters benefit our planet.

Study science with your first grader in this arts and crafts activity that models the reason why fall leaves change color with some paint and crayons.

This project determines what category of person is most likely to be ticklish.

Ever wondered how a plant drinks water? This science project will teach you how and help you create a beautiful floral display!

Hatch a praying mantis egg case in a homemade habitat with your child's help! This is an amazing experiment in science and nature for kids of any age.

This science experiment tests why guacamole goes brown and if leaving the pit in will stop guacamole from turning brown.

Grow a garden with an environmentally-friendly twist by using plant scraps that usually get thrown away.

This fun marbled paper craft uses things you're likely to have around your house, and it teaches kids some simple chemistry too!

This science fair project idea explores how the shape of a boat affects its density and how much weight it can float.

Let your second grader pay homage to an ancient Olympic tradition with this modern day Olympic wreath!

How can we describe the relationship of magnetic field strength vs. distance? Kids will find out with this free science fair project idea.

Spiders don't go to grocery stores or fast food chains to get their food -- they set up traps and wait for their food to come to them!

In this free science fair project, build a star clock and learn how to tell time on a clear night by observing the big dipper!

Learners hypothesize about and experiment with soil erosion in this hands-on activity.

This science fair project idea determines if crystals will absorb food dye and if colors will mix by the process of diffusion.

How does dishwashing liquid work? Kids discover the chemical mechanism behind cleansing power in this easy science fair project idea.

What makes your shadow dance around all day? Let's play detective and find out why that sneaky shadow never stays in one place for long.

Help your first grader design and create his very own bird feeder out of an empty milk carton.

Take a closer look at your furry friend (or the furry friend of a neighbor -- with permission) to discover if communication exists between cats and humans.

If you're looking for something to keep your kid busy on a warm day, and give him some writing practice in the process, bring on the mud!

What is persistence of vision? With this hands-on science fair project idea, students will demonstrate this cool and dramatic phenomenon in their own classroom.

This science fair project teaches students about wilting and browning of salad greens.

Use simple items to create a kindergarten "grow box" that lets a kid see just how salad plants send down their roots and grow underground.

Give some of your local ladybugs a warm place to stay for the winter by making a ladybug home with recycled materials.

Try the classic balloon-on-the-wall trick with your kid and watch static electricity in action.